Loved the Kennywood pics, Shane, especially that sweet Jack Rabbit shot.
And in the Bonus Material #1 -- at 3:21 -- there's a quick glimpse of the Thunderbolt's now-removed speed bump on the inner leg of the newer section. Today, this area is relatively flat like the outer leg. Though I didn't ride TBolt until 1980, I've heard from those that experienced it in the first season (1968) that this hill was quite turbulent and pushed the lateral Gs to the edge of what the rolling stock and riders could endure.
Does anyone know if the current mid-course trim brake (that occurs just before the third drop into the ravine) was the same length as it is today, or did the removal of this speed bump allow the entrance to the brake to be extended?
Here's a pic of the hill that was removed not long after the TBolt opened. The alteration was mentioned in one of the KDKA segments.